Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question- Part 1) Doctors sometimes spray ethyl chloride on the skin to momentarily freeze it for minor operations. Explain how this works considering that ethyl chloride is a very volatile liquid with a relatively low boiling point.
Part 2) Sketch two water molecules and show what portions of the molecules can attract when they are in close proximity.
Part 3) Classify each of the following diatomic molecules/ions as polar or nonpolar.
A) HF
B) Cl2
C) CN-
Part 4) Does the nature of intermolecular forces change when a substance goes from a solid to a liquid, of from a liquid to a gas? What causes a substance to undergo a phase change?
Show all work, use additional paper if necessary.
Approximate the free energy change (delta Grxn) for the subsequent reaction at 298 K, if each gaseous substance is present at p = 0.60 atm. N2(g) + 3H2(g) = 2NH3(g).
Problem- The Ksp of metal hydroxide, Fe(OH)2, is 1.60 x 10^-14. Calculate the solubility of this compound in g/L. Show all work, use additional paper if necessary.
The solubility of N2 in blood at 37°C and at a partial pressure of 0.80 atm is 5.6 10-4 mol/L. A deep-sea diver breathes compressed air with the partial pressure of N2 equal to 3.6 atm. Assume that the total volume of blood in the body is 5.0 L. C..
What is the theoretical yield calculation for the reaction of p-phenetidine with acetic anhydride
Calculate the ratio of [Ca2+] to [Fe2+] in a lake in which the water is in equilibrium with deposits of both CaCO3 and FeCO3, assuming that the water is slightly basic and that the hydrolysis of the carbonate ion can therefore be ignored.
A 1.80-g sample of phenol (C6H5OH) was burn up in a bomb calorimeter whose total heat capacity is 11.66 kJ/°C. The temperature of the calorimeter plus contents improved from 21.36°C to 26.37°C. State a balanced chemical equation for the bomb calor..
A sample of neon gas occupies a volume of 2.8L at 1.8 atm. What would be its volume at 1.2atm
1. use the kinetic-molecular theory to explain what happens as anunknown solid is heated from below its freezing point
Cool to the final temp at constant volume and then expand to the final pressure at constant temperature. Calculate the work done for each path.
Assuming that the total volume of the solution does not change after 12.0 moles of HCl are added to 1.0 L of a solution containing 1.0 mole of Hg2+ ion, calculate the equilibrium concentration of Hg2+ in the solution Hg2+ + 4CL- [HgCl4]2-, Kf = 1...
Give the structural formula of the lewis-acid base complex which consists of one mole of phenylmagnesium bromide and two moles of diethyl ether.
What is the technique for securing a piece of filter paper into a Buchner funnel for vaccum filtration? c) The alum crystals are washed of contaminants with an alcohol-water mixture rather than with deionized water. Explain.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd